Thomas bonnee



(No Model.)v i

TQ BONNER. f i f Steam Heating Appe'raulsf..` l No."24o, 649. Patented 4gpl-n.26, 1881.

, UNITED STATES PATENT OFFICE,

THOMAS BONNEE, E NEW YORK, N. Y.

STEAM-HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 240,649, dated April 26,1881.

V Application tiled Febrnary23,1881. (No model.)

To all whom it may concern:

Be it known that I, THOMAS BONNER, a citizen of the United States, residingat New York, in the county and State of NewYork, have invented new and useful Improvements in Steam- Heating Apparatus,of which the following is a specification.

This invention relates to that class ot' heating apparatus comprising a casin g having openings at the top and bottom thereof, provided with valves, and a steam-radiator inclosed in the casin g, so that When the valves are opened cold air enters the casing at the bottom and escapes therefrom at the top in a heated condition.

Prior to'my invention no provision has been made for preventing the radiation of heat from the casing, and hence the air valves, when closed, merely serve to diminish the heat ot' the apparatus without shutting it otf altogether,

and it is necessary to provide the steam -radiator with a valve to be closed when no heat is desired, and vice versa. The u-se of this radiator-valve, in addition to the air-valves of the casing is objectionable, for the `obvious reason thatit complicates the operation of the apparatus, and to overcome this objection l construct the casingof a material which is a non-conductor of heat, so that when the airvalves are closed the heat of the apparatus is entirely shut off, whether or not steam is admitted to the radiator.

Another objection to the old form of apparatus is that one valve is liable to be left closed when the other is opened, and vice versa, by neglect or carelessness of the attendant, and thereby the correct action of the apparatus is prevented. To overcome this objection I conneet the air-valves with each other and employ a device vfor operating them simultaneously, as hereinafter `more fully set forth.

This invention is illustrated in the accompanying drawings, in which Figurel represents a perspective View, and Fig. 2 a vertical cross-section.

Similar letters indicate corresponding parts.

The letter A designates the casing; B, its bottom opening; C its top opening; D E, the air-valves, and F a coil of pipes constituting the steam-radiator.

In this example the casing A is made of a rectangular form, and the openings B C are both formed in one side thereof; but, if desired, the openin gs may be formed in the opposite sides of the casin g; or, it desired, they may be duplicated. In order to render the casing A a non-conductor of heat it is constructed of fire-cement, this material being molded on a frame, A', of metal or other suitable material; but the casing can be made also of other Wellknown materials adapted to the desired purpose, and it will be readily understood that by this construction the radiation of heat from the casing is prevented, so that the heat of the apparatus is practically shut off when the valves D E are closed.

In this example the valves D E are composed of hinged slats, and the slats of one valve are connected together and to those of the other valve by means of a rod, G, While a lever, H, extending through a suitable opening in the casing is connected to the rod, so that when this lever is oscillated the rod shares its motion, and bothvalves are opened or closed, as the case may be, simultaneously. In this manner the correct action of the apparatus is insured, While the manipulation of the valves moreover is facilitated,inasmuch as but one movement is required for both.

" I do not broadly claim a stean1heating coil `inclosed within a casing which is provided with valved openings to admit air at the bottom and permit its escape in heated condition at, the top; neither do I broadly claim a noncondueting casing for heating apparatus; nor do I claim a series of dampers connected and controlled simultaneously; but

`What I claim as new, and desire to secure by Letters Patent, is-

l. A steam-heater consisting of a coil of steam-supply pipes inclosed Within a casing of non-heat-conducting material, the front wall of the casing having at or near its top and bottom a longitudinal air-opening controlled by interior concealed and connected valves, arranged to simultaneously open and close the top and bottom air-openings, substantially as described..

2. The steam-heating apparatus herein described, consisting of a vertically'- arranged coil of steampipes, F, inclosed Within a casing, A, of non-heat-conducting material, the front wall of which is provided at or near its top and bottom with the longitudinal openings B and IOO C, in combination with the top and bottom valves, Dv and E, arranged upon the interior of the casing and connected by a rod, G, and an operating-lever, H, connected With the said rod and projecting through an opening in the Wall of the casing to the exterior thereof'7 the Whole being constructed and arranged substantially as herein shown and described.

THOMAS BONNER. [L. s.]

Witnesses J. HERMANN WAHLERs, CEAS. WAHLERs. 

